/*
* Style File - jQuery plugin for styling file input elements
*  
* Copyright (c) 2007-2009 Mika Tuupola
*
* Licensed under the MIT license:
*   http://www.opensource.org/licenses/mit-license.php
*
* Based on work by Shaun Inman
*   http://www.shauninman.com/archive/2007/09/10/styling_file_inputs_with_css_and_the_dom
*
*/

(function($) {

    $.fn.filestyle = function(options) {

        /* TODO: This should not override CSS. */
        var settings = {
            width: 339
        };

        if (options) {
            $.extend(settings, options);
        };

        return this.each(function() {
            var self = this;
            var wrapper = $("<div>")
                            .css({
                                "width": settings.imagewidth + "px",
                                "height": settings.imageheight + "px",
                                "background": "url(" + settings.image + ") 0 0 no-repeat",
                                "background-position": "right",
                                "display": "inline",
                                "position": "absolute",
                                "overflow": "hidden"
                            });

            var filename = $('<input class="file" readonly="readonly" id="txtFileUpload" >')
                             .addClass($(self).attr("class"))
                             .css({
                                 "display": "inline",
                                 "width": settings.width + "px",
                                 "margin-right":"10px"
                             });

            $(self).before(filename);
            $(self).wrap(wrapper);

            $(self).css({
                "position": "relative",
                "height": settings.imageheight + "px",
                "width": settings.width + "px",
                "display": "inline",
                "cursor": "pointer",
                "opacity": "0.0"
            });

            if ($.browser.mozilla) {
                if (/Win/.test(navigator.platform)) {
                    $(self).css("margin-left", "-142px");
                } else {
                    $(self).css("margin-left", "-168px");
                };
            } else {
                $(self).css("margin-left", settings.imagewidth - settings.width + "px");
            };

            $(self).bind("change", function() {
                filename.val($(self).val());
            });

        });


    };

})(jQuery);
